Blue Glowing Ice Cube (1/Pkg) is a fantastic drink accessory and must have for any mega party you’re hosting. Dump this glowing cube into your beers at Oktoberfest or clinking your glass together in celebration of a loved one’s graduation and watch the stunning blue glow emerge. Each Blue Glowing Ice Cube measures 1 inch by 1 inch and is sold one (1) cube per package. To active this ice cube is simple. Press a button located at the base of the ice from for an instant vibrant blue glow that can last between eight (8) to twelve (12) hours. No need to worry about making your guests feeling blue. With Blue Glowing Ice Cube (1/pkg), your guests will be both intrigued and having fun at the same time. Additional glowing ice cubes are also available.